EP 3176478 A1 20170607 - ACTUATOR OF REGULATOR AND FLUID REGULATOR
Title (en)
ACTUATOR OF REGULATOR AND FLUID REGULATOR
Title (de)
AKTUATOR FÜR REGLER UND FLUIDREGLER
Title (fr)
ACTIONNEUR DE RÉGULATEUR ET RÉGULATEUR DE FLUIDE
Publication
Application
Priority
- CN 201420429009 U 20140728
- CN 2015085279 W 20150728
Abstract (en)
An actuator of a regulator is provided. The actuator is connected to one end of a valve rod (212/312). The actuator comprises a shell (203/303); a limiting component (205/305), the limiting component (205/305) being disposed on an inner wall of the shell (203/303); a diaphragm assembly (204/304), the diaphragm assembly (204/304) being accommodated in the shell (203/303), and the diaphragm assembly (204/304) being movably sleeved on the valve rod (212/312); and an elastic element (226/326), the elastic element (226/326) being accommodated in the shell (203/303), and the elastic element (226/326) being coupled to the diaphragm assembly (204/304), and being movably sleeved, between the diaphragm assembly (204/304) and a tip of one end of the valve rod (212/312), on the valve rod (212/312) in a compressed mode. An inner diameter of a portion, making contact with the shell (203/303), of the limiting component (205/305) is smaller than an outer diameter of an upper portion of the diaphragm assembly (204/304), and the limiting component (205/305) is located above the diaphragm assembly (204/304). A fluid regulator having the actuator is provided. By means of the actuator, the technical problem that a valve rod, a valve flap and a valve port are deformed and even damaged due to extremely large stress in the regulator is solved, the valve rod, the valve flap and the valve port of a valve element assembly are buffered to a certain extent when bearing extremely large stress, and therefore damage is avoided.
IPC 8 full level
F16K 17/20 (2006.01)
CPC (source: EP US)
F16K 17/04 (2013.01 - US); G05D 16/0655 (2013.01 - EP US); G05D 16/0661 (2013.01 - US); Y10T 137/7821 (2015.04 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3176478 A1 20170607; EP 3176478 A4 20180307; EP 3176478 B1 20210414; CN 204025703 U 20141217; US 10443748 B2 20191015; US 2017211714 A1 20170727; WO 2016015620 A1 20160204
DOCDB simple family (application)
EP 15828177 A 20150728; CN 201420429009 U 20140728; CN 2015085279 W 20150728; US 201515500483 A 20150728